If other projects had attack vectors this large, the projects would shut down.
I was watching a 5 minute talk about the lightning network at Financial Cryptography and Data Security 2021. It's surreal. I liked the information in a presentation by Ayelet Mizrahi called "Congestion Attacks in Payment Channel Networks."
It's crazy to think this talk is about a live project. If a project knew there were attack vectors this large why would you even launch such a project. I watched the 5 minute live version but there is the longer prerecorded version: https://www.youtube.com/watch?v=3lzxdTMgdRw